TDM Flashcards
Highest concentration of drug in the blood; occurs when absorption/distribution exceeds metabolism/excretion
Peak
Lowest concentration of drug in the blood; achieved just before the next dose
Trough
Time required for drug concentration to decrease by half
Half-life
State where drug absorption/distribution equals metabolism/excretion, typically after 5-7 half-lives
Steady state
Lowest drug concentration in the blood that produces adverse response
MTC (Minimum Toxic Concentration)
Lowest drug concentration in the blood that produces desired effect
MEC (Minimum Effective Concentration)
Range between MEC and MTC that produces therapeutic effect
Therapeutic range
Drug dose that produces beneficial effect in 50% of the population
ED50 (Effective Dose 50)
Drug dose that produces adverse effect in 50% of the population
TD50 (Toxic Dose 50)
Drug dose that causes death in 50% of individuals
LD50 (Lethal Dose 50)
Therapeutic index is the ratio that indicates drug safety margin
TD50 to ED50
Analytical technique that uses Rf values for semi-quantitative screening
Thin-layer Chromatography
Formula for Rf
distance migrated by sample component/distance migrated by solvent
Technique for insufficiently volatile and thermolabile compounds; mobile phase is liquid passed over stationary phase in the column
Liquid Chromatography
Type of liquid chromatography with liquid mobile phase and stationary phase in a column
HPLC (High-Performance Liquid Chromatography)
Liquid chromatography with polar stationary phase and nonpolar mobile phase
Normal-phase LC
Liquid chromatography with nonpolar stationary phase and polar mobile phase
Reverse-phase LC
Chromatography method for volatile or easily volatile compounds, including organic molecules and many drugs
Gas Chromatography
Time it takes for a compound to elute; used for solute identification
Retention time
Measurement proportional to the amount of solute present; used for quantification
Peak area or Height
Common detector system in GC or HPLC for solute identification and quantification
Mass spectrometry
Immunoassay using microparticles as solid phase, enzyme label, and fluorogenic substrate; heterogeneous assay
Microparticle enzyme immunoassay (MEIA)
Homogenous immunoassay where enzyme activity as a label is inhibited by antibody binding to antigen-enzyme conjugate
Enzyme-multiplied immunoassay technique (EMIT)
Homogenous immunoassay using polarized light; rate of rotation is inversely proportional to polarization degree and analyte concentration
Fluorescence polarization immunoassay (FPIA)